7782062656 has 21 divisors (see below), whose sum is σ = 15443931139. Its totient is φ = 3890678464.

The previous prime is 7782062641. The next prime is 7782062657. The reversal of 7782062656 is 6562602877.

The square root of 7782062656 is 88216.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7782062657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 700215 + ... + 711241.

Almost surely, 2^7782062656 is an apocalyptic number.

7782062656 is the 88216-th square number.

It is an amenable number.

7782062656 is a deficient number, since it is larger than the sum of its proper divisors (7661868483).

7782062656 is an frugal number, since it uses more digits than its factorization.

7782062656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22066 (or 11029 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The cubic root of 7782062656 is about 1981.6710933891.

Multiplying 7782062656 by its sum of digits (49), we get a square (381321070144 = 617512²).

The spelling of 7782062656 in words is "seven billion, seven hundred eighty-two million, sixty-two thousand, six hundred fifty-six".